Rifle barrel adapter



FIG. 1 is first perspective top view of a rifle barrel adapter accordingto the present design.

FIG. 2 is second perspective top view of the rifle barrel adapteraccording to the present design.

FIG. 3 a perspective bottom view of the rifle barrel adapter accordingto the present design.

FIG. 4 is bottom plan view of the rifle barrel adapter shown in FIGS.1-3; and,

FIG. 5 is top plan view of the rifle barrel adapter shown in FIGS. 1-3.

CLAIM The ornamental design for a rifle barrel adapter, as shown anddescribed.